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Time Consistency: Stationarity and Time Invariance

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  • Halevy, Yoram

Abstract

A sequence of experiments documents static and dynamic ``preference reversals'' between sooner-smaller and later-larger rewards, when the sooner reward could be immediate. The theoretically-motivated design permits separate identification of time-consistent, stationary and time-invariant choices. At least half of the subjects are time consistent, but only three-quarters of them exhibit stationary choices. About half of subjects with time inconsistent choices have stationary preferences. These results challenge the view that present-bias preferences are the main source of time inconsistent choices.

Suggested Citation

  • Halevy, Yoram, 2012. "Time Consistency: Stationarity and Time Invariance," Microeconomics.ca working papers yoram_halevy-2012-39, Vancouver School of Economics, revised 25 Feb 2015.
    • Handle: RePEc:ubc:pmicro:yoram_halevy-2012-39
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    File URL: http://faculty.arts.ubc.ca/yhalevy/stationarity.pdf
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    Keywords

    Time Discounting; diminishing imparience; dynamic consistency; present bias; stability; intertemporal preferences;
    All these keywords.

    JEL classification:

    • D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • C91 - Mathematical and Quantitative Methods - - Design of Experiments - - - Laboratory, Individual Behavior

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